Is this back pain killing me? All‐cause and cardiovascular‐specific mortality in older Danish twins with spinal pain

Usual care for low back pain and barriers to best practice: A cross-sectional study in Danish general practice

OBJECTIVES

To describe the current content of low back pain (LBP) care in Danish general practice, the patients' self-management activities, and the clinicians' experienced barriers to providing best practice care.

METHODS

This cross-sectional observational study included adults with LBP seeking care in Danish general practice from August 2022 to June 2023. Patient-reported information included demographics, pain intensity, medical history, treatments, and self-management strategies. Clinicians provided data specific to each consultation, detailing the content of these consultations, and barriers to best practice in the specific cases.

RESULTS

The study involved 71 clinicians from 42 general practice clinics, with patient-reported data from 294 patients, and clinician-reported data from 283 (95%) consultations. The mean age for the included patients was 53 years, 56% were female, and 31% had been on sick leave for LBP during the previous 3 months. Moreover, 44% had seen two or more healthcare professionals in the previous month, 55% had previously undergone diagnostic imaging for LBP, 81% reported using any type of analgesics, and 14% reported using opioids. The majority (91%) reported engaging in self-management activities to alleviate pain. Consultations typically included a physical examination (84%), information about the cause of the pain (74%), and management advice (68%), as reported by clinicians or patients. In general, clinicians reported consultation elements more frequently than patients. Clinicians reported providing best practice care in 84% of cases, with time constraints (23%) and patient expectations (10%) being the most common barriers.

CONCLUSIONS

This study provides detailed insights into the management of LBP in Danish general practice. It reveals a complex landscape of patient engagement, varying management strategies, and differing perceptions of care content between patients and clinicians. Patients were often engaged in self-management activities and clinicians reported few barriers to providing best practice care.

Cognition is selectively impaired in males with spinal pain: A retrospective analysis of data from the Longitudinal Study of Ageing Danish Twins

Cognitive decline and spinal pain (back pain [BP] and neck pain [NP]) represent a major public health challenge, yet the potential relationship between them remains elusive. A retrospective analysis of the Longitudinal Study of Ageing Danish Twins was performed to determine any potential relationships between BP/NP and cognitive function adjusting for age, sex, educational and socioeconomic status. A total of 4731 adults (2788 females/1943 males) aged 78 ± 6 (SD) years were included in the analysis. We observed a 1-month prevalence of 25% with BP, 21% with NP and 11% for combined BP/NP. While there were no differences in cognition scores for males and females reporting combined BP/NP, compared to those without combined BP/NP (34.38 points [95% confidence interval (CI) = 31.88, 36.88] vs. 35.72 points [95% CI = 35.19, 36.26]; P = 0.180; and 35.72 points [95% CI = 35.19, 36.26] vs. 35.85 points [95% CI = 35.39, 36.31]; P = 0.327; for male and females, respectively), an adjusted analysis revealed that males with combined BP/NP presented with lower cognitive scores compared to males without combined BP/NP (81.26 points [95% CI = 73.80, 88.72] vs. 79.48 points [95% CI = 70.31, 88.66]; P = 0.043). The findings of this hypothesis-generating study may highlight a potential sex-specific association between spinal pain and later-life neurodegeneration.

Multimorbidity in patients with low back pain in Danish chiropractic practice: a cohort study

BACKGROUND

People with multimorbidity, defined as the co-existence of two or more chronic conditions in an individual, often suffer from pain and functional limitations caused by musculoskeletal disorders and the chronic conditions. In chiropractic practice, two thirds of patients are treated for low back pain (LBP). It is unknown to what extent LBP is accompanied with chronic conditions in chiropractic practice. The objective was to determine the prevalence of multimorbidity among patients with LBP in chiropractric practice and to investigate if multimorbidity affects pain intensity, self-rated health, physical and mental health. Finally, to explore if individuals with multimorbidity have a different recovery for the LBP.

METHODS

Patients presenting with a new episode of LBP were recruited from 10 chiropractic clinics in 2016-2018. Patient-reported data concerning socio-demographics, self-rated health, pain intensity, history of LBP, mental health and chronic conditions were collected at baseline. The prevalence of multimorbidity was determined. To evaluate differences in recovery from the LBP, we estimated changes in the Roland Morris Disability Questionnaire (RMDQ) score and use of pain medication at baseline, 2 weeks, 3 months and 12 months. The analyses were adjusted using regression models.

RESULTS

2083 patients were included at baseline and 71%, 68% and 64% responded to follow-up questionnaires at 2 weeks, 3 and 12 months. 1024 (49%) participants reported to have at least one chronic condition and 421 (20%) had multimorbidity (≥ 2 chronic conditions). The presence of multimorbidity was associated with increased odds of poor self-rated health (OR 2.13), physical fitness (OR 1.79), poor muscular strength (OR 1.52), poor endurance (OR 1.51), and poor balance (OR 1.33). Patients with high LBP intensity combined with multimorbidity showed a poorer recovery than patients without chronic diseases (mean difference in RMDQ score 3.53 at 12 months follow-up). More patients with multimorbidity used pain medication for LBP at 12 months follow-up compared to those without chronic disease (OR 2.36).

CONCLUSIONS

Chiropractors should be aware that patients with LBP may suffer from multimorbidity with poor general health. Patients with multimorbidity also have poorer recovery from LBP than people without chronic disease and clinical follow-up may be indicated.

"Like Peanut Butter and Jelly": A Qualitative Study of Chiropractic Care and Home Exercise Among Older Adults With Spinal Disability

OBJECTIVE

A mixed-methods, randomized controlled trial comparing short- and long-term chiropractic care and exercise therapy for spinal disability in older adults found no between-group differences in the primary outcome. However, those who received long-term management reported greater improvement in neck pain, self-efficacy, function, and balance. This nested qualitative study explored participants' perceptions of the benefits and drawbacks of chiropractic care and exercise for spine-related outcomes, with an emphasis on understanding what makes treatment for spine-related problems worthwhile.

METHODS

Of 171 individual interviews conducted after completing study treatment, 50 participants (25 per treatment group) were randomly selected for this analysis. Qualitative descriptive analysis included dual coding of verbatim transcripts by 2 investigators (MM and SAS), which was further distilled into a consensus-derived codebook of themes and organized using NVIVO software.

RESULTS

Participants described trial interventions as complementary to one another for spine-related disability. Chiropractic care was viewed as improving spinal pain and controlling symptoms, while exercise therapy was noted for its long-term impact on self-efficacy and self-management. These older adults considered changes in pain, global sense of improvement, and improved biomechanical function as making treatment worthwhile.

CONCLUSION

Older adults valued nonpharmacologic treatment options that aided them in controlling spine-related symptoms, while empowering them to maintain clinical benefit gained after a course of chiropractic spinal manipulation and exercise. The complementary nature of provider-delivered and active care modalities may be an important consideration when developing care plans. This study underscores the importance of understanding participants' values and experiences when interpreting study results and applying them to practice.

The Nexus of Physical and Psychological Pain: Consequences for Mortality and Implications for Medical Sociology

Although physical pain lies at the intersection of biology and social conditions, a sociology of pain is still in its infancy. We seek to show how physical and psychological pain are jointly parts of a common expression of despair, particularly in relation to mortality. Using the 2002-2014 National Health Interview Survey Linked Mortality Files (N = 228,098), we explore sociodemographic differences in the intersection of physical and psychological pain (referred to as the "pain-distress nexus") and its relationship to mortality among adults ages 25 to 64. Results from regression and event history models reveal that differences are large for the combination of the two, pointing to an overlooked aspect of health disparities. The combination of both high distress and high pain is most prevalent and most strongly predictive of mortality among socioeconomically disadvantaged, non-Hispanic whites. These patterns have several implications that medical sociology is well positioned to address.

Association of Back Pain with Mortality: a Systematic Review and Meta-analysis of Cohort Studies

BACKGROUND

Back pain is the most common cause of disability worldwide. While disability generally is associated with greater mortality, the association between back pain and mortality is unclear. Our objective was to examine whether back pain is associated with increased mortality risk and whether this association varies by age, sex, and back pain severity.

METHODS

A systematic search of published literature was conducted using PubMed, Web of Science, and Embase databases from inception through March 2019. We included English-language prospective cohort studies evaluating the association of back pain with all-cause mortality with follow-up periods >5 years. Three reviewers independently screened studies, abstracted data, and appraised risk of bias using the Quality in Prognosis Studies (QUIPS) tool. A random-effects meta-analysis estimated combined odds ratios (OR) and 95% confidence intervals (CI), using the most adjusted model from each study. Potential effect modification by a priori hypothesized factors (age, sex, and back pain severity) was evaluated with meta-regression and stratified estimates.

RESULTS

We identified eleven studies with 81,337 participants. Follow-up periods ranged from 5 to 23 years. The presence of any back pain, compared to none, was not associated with an increase in mortality (OR, 1.06; 95% CI, 0.97 to 1.16). However, back pain was associated with mortality in studies of women (OR, 1.22; 95% CI, 1.02 to 1.46) and among adults with more severe back pain (OR, 1.26; 95% CI, 1.14 to 1.40).

CONCLUSION

Back pain was associated with a modest increase in all-cause mortality among women and those with more severe back pain.

TEXT4myBACK: A Text Message Intervention to Improve Function in People With Low Back Pain-Protocol of a Randomized Controlled Trial

OBJECTIVE

The authors sought to describe the protocol of a randomized controlled trial that will investigate the effects of the TEXT4myBACK self-management text message intervention compared with control in people with low back pain (LBP).

METHODS

A single-blind (assessor and statistician), randomized controlled trial with economic analysis and process evaluation will be conducted. A total of 304 people with non-specific LBP of less than 12 weeks will be enrolled and randomly allocated either to TEXT4myBACK intervention or control groups. The TEXT4myBACK intervention group will receive 4 semi-personalized text messages per week providing advice, motivation, and information about LBP, physical activity, sleep, mood, use of care, and medication during 12 weeks. The control group will receive 1 text message with a link to a LBP and diet online information package. Outcomes will be assessed at baseline and 3, 6, and 12 months. The primary outcome will be function assessed with the Patient-Specific Functional Scale. Secondary outcomes will include pain intensity, physical activity participation, sedentary behavior, global impression of change, health-related quality of life, and eHealth literacy. Data on demographic characteristics, smallest worthwhile change (ie, smallest function scored needed to be achieved at the end of the intervention to consider it to be worthwhile), health care utilization, and adverse events (ie, any new health issue that occurs during participation in the study) will be collected. An economic and process evaluation will also be conducted.

IMPACT

This study will assess if a self-management text message intervention is effective and cost-effective in improving function of people with LBP. This study can inform clinical practice of a simple, scalable, and affordable intervention for managing LBP.

Mortality among persons experiencing musculoskeletal pain: a prospective study among Danish men and women

Background

Musculoskeletal (MSK) pain affects many people worldwide and has a great impact on general health and quality of life. However, the relationship between MSK pain and mortality is not clear. This study aimed to investigate all-cause and cause-specific mortality in relation to self-reported MSK pain within the last 14 days, including spread of pain and pain intensity.

Methods

This prospective cohort study included a representative cohort of 4806 men and women aged 16+ years, who participated in a Danish MSK survey 1990–1991. The survey comprised questions on MSK pain, including spread of pain and pain intensity. These data were linked with the Danish Register of Causes of Death to obtain information on cause of death. Mean follow-up was 19.1 years. Cox regression analyses were performed with adjustment for potential confounders.

Results

In the study population (mean age 44.5 years; 47.9% men), 41.0% had experienced MSK pain within the last 14 days and 1372 persons died during follow-up. For both sexes, increased all-cause mortality with higher spread and intensity of MSK pain was observed; a high risk was observed especially for men with strong pain (HR = 1.66; 95% CI:1.09–2.53) and women with widespread pain (HR = 1.49; 95% CI:1.16–1.92). MSK pain within last 14 days yielded c-statistics of 0.544 and 0.887 with age added. Moreover, persons with strong MSK pain had an increased cardiovascular mortality, persons with moderate pain and pain in two areas had an increased risk of cancer mortality, and persons with widespread pain had an increased risk of respiratory mortality.

Conclusions

Overall, persons experiencing MSK pain had a higher risk of mortality. The increased mortality was not accounted for by potential confounders. However, when evaluating these results, it is important to take the possibility of unmeasured confounders into account as we had no information on e.g. BMI etc.

Significance

The present study provides new insights into the long-term consequences of MSK pain. However, the discriminatory accuracy of MSK pain was low, which indicates that this information cannot stand alone when predicting mortality risk.

The burden of non-specific chronic low back pain among adults in KwaZulu-Natal, South Africa: a protocol for a mixed-methods study

INTRODUCTION

Low back pain (LBP) is a major public health concern, affecting individuals of all age groups across the world. In about 90% of LBP cases, there is no specific cause identified and is, therefore, referred to as non-specific LBP. Due to the non-specific nature of LBP, investigations such as radiological and laboratory investigations are unnecessary and results to delayed diagnosis and improper treatment culminating in LBP progressing into chronic LBP (CLBP). LBP is now the leading cause of disability with a significant socioeconomic burden. Despite all these challenges, CLBP is regarded as a trivial condition in low-and-middle-income countries and remains poorly investigated. The distribution of CLBP in Africa is unclear.

METHODS AND ANALYSIS

The research will be conducted in two phases. The initial phase will be an observational, cross-sectional hospital-based study that will be recruiting 650 participants, to determine the prevalence and risk factors of CLBP. A standardised questionnaire will be used to collect baseline data on the socio-demographic characteristics of participants and other variables of interest (exercise history, occupational posture, level of education and the income status). Disability will be assessed using the Oswestry Disability Questionnaire and the psychological risk factors will be assessed using the Illness-Behaviour Questionnaire (IBQ) and the Fear-Avoidance Belief Questionnaire (FABQ). The second phase will be a retrospective, top-down, prevalence-based cost-of-illness study of the 2018-2019 health records, to estimate the burden of CLBP from the healthcare system's perspective. The SPSS V.25.0 statistical package will be used for data entry and analysis. Statistical analysis will include descriptive statistics by means of graphs and cross tabulations, inferential statistics by means of logistic regression and χ² test. A p value of 0.05 will be deemed statistically significant.

ETHICS AND DISSEMINATION

This protocol was approved by the University of KwaZulu-Natal's Biomedical Research Ethics Committee (Ref. No.: BREC/00000205/2019) and the KwaZulu-Natal Department of Health Research Ethics (Ref. No.: KZ_201909_002). This will be the first LBP cost-of-illness study in the sub-Saharan Africa, and, therefore, it will close these knowledge gaps and present important evidence on the estimated burden of CLBP in this context. The results of this study will be presented to the Department of Health and to the respective stakeholders and decision-makers to discuss the findings and draw their attention to the prioritisation of LBP research, its management, prevention programmes and implementation of educational programme and for the planning of cost-containment policies.

An Enhanced Approach for Economic Evaluation of Long-Term Benefits of School-Based Health Promotion Programs

Chronic diseases constitute a tremendous public health burden globally. Poor nutrition, inactive lifestyles, and obesity are established independent risk factors for chronic diseases. Public health decision-makers are in desperate need of effective and cost-effective programs that prevent chronic diseases. To date, most economic evaluations consider the effect of these programs on body weight, without considering their effects on other risk factors (nutrition and physical activity). We propose an economic evaluation approach that considers program effects on multiple risk factors rather than on a single risk factor. For demonstration, we developed an enhanced model that incorporates health promotion program effects on four risk factors (weight status, physical activity, and fruit and vegetable consumption). Relative to this enhanced model, a model that considered only the effect on weight status produced incremental cost-effectiveness ratio (ICER) estimates for quality-adjusted life years that were 1% to 43% higher, and ICER estimates for years with chronic disease prevented that were 1% to 26% higher. The corresponding estimates for return on investment were 1% to 20% lower. To avoid an underestimation of the economic benefits of chronic disease prevention programs, we recommend economic evaluations consider program effects on multiple risk factors.

Increased overall and cause-specific mortality associated with disability among workers' compensation claimants with low back injuries

BACKGROUND

Mortality tends to be higher among people who do not work than among workers, but the impact of work-related disability on mortality has not been well studied.

METHODS

The vital status through 2015 was ascertained for 14 219 workers with an accepted workers' compensation claim in West Virginia for a low back injury in 1998 or 1999. Mortality among the cohort compared with the West Virginia general population was assessed using standard life table techniques. Associations of mortality and disability-related factors within the cohort were evaluated using Cox proportional hazards regression.

RESULTS

Compared to the general population, mortality from accidental poisoning was significantly elevated among the overall cohort and lost-time claimants. Most deaths from accidental poisoning in the cohort were due to drug overdoses involving opioids. Mortality from intentional self-harm was also significantly elevated among lost-time claimants. In internal analyses, overall mortality and mortality from cancer, heart disease, intentional self-harm, and drug overdoses involving opioids was significantly associated with lost time. Overall mortality and mortality from drug overdoses involving opioids were also significantly associated with amount of lost time, permanent partial disability, and percent permanent disability. Heart disease mortality was also significantly associated with the amount of lost time.

CONCLUSIONS

The results suggest that disability itself may impact mortality risks. If confirmed, these results reinforce the importance of return to work and other efforts to reduce disability.

Efficacy of an integrated, active rehabilitation protocol in patients ≥ 65 years of age with chronic mechanical low back pain

PURPOSE

This retrospective study aimed to determine the efficacy of an integrated active, rehabilitation protocol in patients ≥ 65 years of age with chronic mechanical low back pain and compare the results in similar patients in 50-64 years age group.

METHODS

Pre- and post-treatment mean numerical pain rating scale (NPRS) score, mean Oswestry disability index (ODI) score, treatment outcome category and minimal clinically important difference (MCID) thresholds achieved for NPRS and ODI scores post-treatment were compared among 697 patients in the 50-64 years and 495 patients in the ≥ 65 years age groups.

RESULTS

At a mean treatment duration of 57 days (range, 30-90 days), both mean NPRS score (p < 0.0001) and mean ODI score (p < 0.0001) were significantly higher in the ≥ 65 years age group when compared to the 50-64 years age group. However, post-treatment outcome categories (p = 0.17) and percentage of patients who achieved MCID thresholds for NPRS score (p = 0.13) and ODI score (p = 0.18) were not significantly different between the two groups. There was a significant correlation between post-treatment NPRS score and patient age and pre-treatment NPRS score and between post-treatment ODI score and incidence of osteoporosis and pre-treatment ODI score.

CONCLUSION

Although mean NPRS and ODI scores achieved were significantly better in patients of 50-64 years of age, our integrated active, rehabilitation protocol helped achieve significant improvement in NPRS score, MCID thresholds for NPRS and ODI scores and treatment outcomes in patients ≥ 65 years of age, similar to patients in the 50-64 years of age group, at the end of 3 months of treatment. These slides can be retrieved under Electronic Supplementary Material.

Back pain and its risk factors in Brazilian adolescents: a longitudinal study

Owing to the lack of longitudinal studies in Latin American countries, we aimed to evaluate back pain and its risk factors in a 3-year longitudinal study of Brazilian adolescents. We analysed data of 525 adolescents (aged 11-16 years) attending primary school (fifth to eighth grade) in Brazil. The students were administered the self-reported Back Pain and Body Posture Evaluation Instrument (BackPEI) questionnaire in 2011 and at a follow-up evaluation that was conducted 3 years later (2014). Back pain was the outcome variable; the exposure variables included exercise, behavioural, hereditary and postural factors. Generalized estimating equations were used to perform a Poisson regression model with robust variance to evaluate the risk factors for back pain. The prevalence of back pain at baseline was 56% (n = 294); this increased significantly at the 3-year follow-up evaluation to 65.9% (n = 346). The frequency of experiencing back pain also significantly increased after 3 years in both boys (p = 0.002) and girls (p = 0.001). The prevalence of back pain increased significantly in adolescents up to the age of 13 years, stabilized in those aged 14 years and older and was higher among girls. A family history of back pain (in the parents), watching television for lengthy periods and carrying a backpack asymmetrically were predictors for back pain.

Pain Provocation and the Energy Cost of Walking: A Matched Comparison Study of Older Adults With and Without Chronic Low Back Pain With Radiculopathy

BACKGROUND AND PURPOSE

Chronic low back pain with radiculopathy (CLBPR) is common among older adults and can lead to walking difficulty. Energy cost of walking strongly predicts changes in walking speed, which is predictive of mortality in older adults. The purposes of this study were to examine (1) the impact of pain provocation on the energy cost of walking and (2) the relationship between pain intensity and change in energy cost of walking.

METHODS

Older adults (60-85 years) with (n = 20) and without (n = 20) CLBPR were matched on age, sex, and diabetes presence/absence. Energy cost of walking was measured with a portable metabolic gas analyzer, as participants walked for 20 minutes or less. Energy cost and pain measurements occurred during early and late stages of walking. Percent change in energy cost was calculated. Participants were grouped by their pain response during walking: increased pain (n = 13); consistent pain (n = 7); no pain, matched to individuals with increased pain (n = 13); and no pain, matched to individuals with consistent pain (n = 7). We examined the within-groups change in energy cost for all groups, as well as the relationship between late-stage pain intensity and percent change of energy cost for individuals whose pain increased.

RESULTS AND DISCUSSION

Within the increased pain group, energy cost of walking significantly increased from early to late stages (median change = 0.003 mL/kg/m, P = .006), and late-stage pain intensity explained 41.2% (p = 0.040) of the variance in percent change. Since pain appears to be linked to energy cost, effective pain management with walking may be an important factor in preventing mobility decline.

CONCLUSIONS

Among older adults with CLBPR, pain provocation drives increases in the energy cost of walking. Because high energy cost of walking is predictive of mobility decline, clinicians may focus on effective pain management strategies during walking, which may potentially decrease the risk of mobility decline.

Aerobic vs. resistance exercise for chronic non-specific low back pain: A systematic review and meta-analysis

BACKGROUND/OBJECTIVE

This meta-analysis compared progressive aerobic training (PAT) to progressive resistance training (PRT) for pain, disability and quality of life (QoL) in people with chronic non-specific low back pain (CNSLBP).

METHODS

Five electronic databases were systematically searched up to 1 March 2016. Randomised controlled trials included land-based PAT, PRT or combined PRT and PAT, versus usual care for CNSLBP. Exercise interventions were supervised a minimum of once per week and performed ⩾ 2 days/week for ⩾ 6 weeks. Outcome measurements were pain intensity, disability, and QoL. Standardised mean difference (SMD) and mean difference (MD) were calculated using Review Manager 5.3.

RESULTS

Six studies were included, comprising 333 participants (94 PRT, 93 PAT, 146 usual care; 66% female; age = 44 ± 6 years; duration of pain = 7 ± 6 years). Exercise significantly reduced pain intensity (SMD =-0.42 [-0.80, -0.03]; p< 0.03) although neither mode proved superior. PRT significantly improved the Short Form Health Survey-Mental Component Score (SF-MCS) (MD = 5.74 [2.02, 9.47]; p= 0.002).

CONCLUSIONS

PAT and PRT decreased pain intensity in individuals with CNSLBP although neither mode was superior. Resistance exercise improved psychological wellbeing. High-quality RCTs comparing PAT, PRT, and PAT + PRT, are required.

Association of Back Pain with All-Cause and Cause-Specific Mortality Among Older Women: a Cohort Study

BACKGROUND

The impact of back pain on disability in older women is well-understood, but the influence of back pain on mortality is unclear.

OBJECTIVE

To examine whether back pain was associated with all-cause and cause-specific mortality in older women and mediation of this association by disability.

DESIGN

Prospective cohort study.

SETTING

The Study of Osteoporotic Fractures.

PARTICIPANTS

Women aged 65 or older.

MEASUREMENT

Our primary outcome, time to death, was assessed using all-cause and cause-specific adjusted Cox models. We used a four-category back pain exposure (no back pain, non-persistent, infrequent persistent, or frequent persistent back pain) that combined back pain frequency and persistence across baseline (1986-1988) and first follow-up (1989-1990) interviews. Disability measures (limitations of instrumental activities of daily living [IADL], slow chair stand time, and slow walking speed) from 1991 were considered a priori potential mediators.

RESULTS

Of 8321 women (mean age 71.5, SD = 5.1), 4975 (56%) died over a median follow-up of 14.1 years. A higher proportion of women with frequent persistent back pain died (65.8%) than those with no back pain (53.5%). In the fully adjusted model, women with frequent persistent back pain had higher hazard of all-cause (hazard ratio [HR] = 1.24 [95% CI, 1.11-1.39]), cardiovascular (HR = 1.34 [CI, 1.12-1.62]), and cancer (HR = 1.33, [CI 1.03-1.71]) mortality. No association with mortality was observed for other back pain categories. In mediation analyses, IADL limitations explained 47% of the effect of persistent frequent back pain on all-cause mortality, slow chair stand time, and walking speed, explained 27% and 24% (all significant, p < 0.001), respectively.

LIMITATIONS

Only white women were included.

CONCLUSION

Frequent persistent back pain was associated with increased mortality in older women. Much of this association was mediated by disability.

Musculoskeletal conditions may increase the risk of chronic disease: a systematic review and meta-analysis of cohort studies

BACKGROUND

Chronic diseases and musculoskeletal conditions have a significant global burden and frequently co-occur. Musculoskeletal conditions may contribute to the development of chronic disease; however, this has not been systematically synthesised. We aimed to investigate whether the most common musculoskeletal conditions, namely neck or back pain or osteoarthritis of the knee or hip, contribute to the development of chronic disease.

METHODS

We searched CINAHL, Embase, Medline, Medline in Process, PsycINFO, Scopus and Web of Science to February 8, 2018, for cohort studies reporting adjusted estimates of the association between baseline musculoskeletal conditions (neck or back pain or osteoarthritis of the knee or hip) and subsequent diagnosis of a chronic disease (cardiovascular disease, cancer, diabetes, chronic respiratory disease or obesity). Two independent reviewers performed data extraction and assessed study quality. Adjusted hazard ratios were pooled using the generic inverse variance method in random effect models, regardless of the type of musculoskeletal condition or chronic disease.

PROSPERO

CRD42016039519.

RESULTS

There were 13 cohort studies following 3,086,612 people. In the primary meta-analysis of adjusted estimates, osteoarthritis (n = 8 studies) and back pain (n = 2) were the exposures and cardiovascular disease (n = 8), cancer (n = 1) and diabetes (n = 1) were the outcomes. Pooled adjusted estimates from these 10 studies showed that people with a musculoskeletal condition have a 17% increase in the rate of developing a chronic disease compared to people without (hazard ratio 1.17, 95% confidence interval 1.13-1.22; I² 52%, total n = 2,686,113 people).

CONCLUSIONS

This meta-analysis found that musculoskeletal conditions may increase the risk of chronic disease. In particular, osteoarthritis appears to increase the risk of developing cardiovascular disease. Prevention and early treatment of musculoskeletal conditions and targeting associated chronic disease risk factors in people with long standing musculoskeletal conditions may play a role in preventing other chronic diseases. However, a greater understanding about why musculoskeletal conditions may increase the risk of chronic disease is needed.

Twin studies for the prognosis, prevention and treatment of musculoskeletal conditions

BACKGROUND

Musculoskeletal conditions are highly prevalent in our ageing society and are therefore incurring substantial increases in population levels of years lived with disability (YLD). An evidence-based approach to the prognosis, prevention, and treatment of those disorders can allow an overall improvement in the quality of life of patients, while also softening the burden on national health care systems.

METHODS

In this Masterclass article, we provide an overview of the most relevant twin study designs, their advantages, limitations and major contributions to the investigation of traits related to the domain of musculoskeletal physical therapy.

CONCLUSIONS

Twin studies can be an important scientific tool to address issues related to musculoskeletal conditions. They allow researchers to understand how genes and environment combine to influence human health and disease. Twin registries and international collaboration through existing networks can provide resources for achieving large sample sizes and access to expertise in study design and analysis of twin data.